1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
antoniya [11.8K]
3 years ago
11

Logan is 2 years older than Lindsey .Five years ago, the sum of their age was 30 . Find Lindsey's current age

Mathematics
2 answers:
Ahat [919]3 years ago
6 0
Lindsey=l
Logan=h
h=l+2
(h-5)+(l-5)=30
h-5+l-5=30
h+l-10=30
h+l=40
l+l+2=40
2l+2=40
2l=38
l=19
h=21
So Lindsey is 19

Hope this helps :)
marusya05 [52]3 years ago
4 0
X is 2 more than y
x=2+y

5 years ago (x-5 and y-5)
sum is 30
x-5+y-5=30
x+y-10=30

x=2+y
sub 2+y for x
2+y+y-10=30
2y-8=30
add 8 to both sides
2y=38
divide both sides by 2
y=19

Lindsey is 19
You might be interested in
PLS help me with this!
shepuryov [24]
He can make 32 sandwiches. Since he uses 1/8 pound of cheese for each sandwich, he can make 8 sandwiches using 1 pound of cheese (1/8 x 8 = 1). Now that you know he can make 8 sandwiches with 1 pound of cheese, multiply 8 (this is the sandwiches) by 4 (pounds of cheese).
4 0
3 years ago
A= (4,5) B= (7,-9) what is AB ?
VMariaS [17]
If you are needing to find the distance between the two points, you must use a simple formula, cleverly named, the distance formula. Since I can't input special characters into the answer box, I'll explain it the best I can.

( The square root of (  (x - x)^2 + (y - y)^2 )  )

First, we need to find the first x subtracted from the second x, as so:
(4,5) and (7,-9)

4 - 7 = -3

Now, we square the -3.

-3^2 = 
-3 * -3 = 9

Next, we have to find the first y subtracted from the second y.
(4,5) and (7,-9)

5 - (-9) = 14

Now, we square the 14.

14^2 =
14 * 14 = 196

Let's see how the numbers fit in the formula:

sqrt((x - x)^2 + (y - y)^2)

sqrt((4 - 7)^2 + (7 - (-9))^2)

sqrt((-3)^2 + (14)^2)

sqrt( 9 + 196 )

This is where we currently are in the formula, all we have to do now is square root the total of 9 + 196.

sqrt( 9 + 196 )
sqrt( 205 )

The square root of 205 = 14.31782106...

There are a few answers you can consider:

1) sqrt(205)
2) 14.32 units
or
3) 14.31782106

Depending on the answer you desire, use the one that sounds the most correct to you. Although all three are correct, it may not be the answer you require. 

Hope I could help! If my math is incorrect, or I provided answers you were not looking for, please let know! However, if my answer is correct and well explained, please consider marking my answer as <em>Brainliest</em>! :)

Have a good one.
God bless!
4 0
3 years ago
Determine the mode(s) of the data 2, 2, 2,3,5,5, 6, 7, 8, 8, 8, 9, 10.
Genrish500 [490]

To find the mode, put all the numbers in order from least to greatest, then count how many times you see a number. The number you see the most is the mode. In this problem, we have more than one mode, we have two. The number two appears three times and so does number eight. Having two modes is called bimodal, and having more than two modes is called multimodal. So we have a bimodal of two and eight from this data.

6 0
3 years ago
Tom predicted that the Giants what score three point field goal scored two 6 points touchdowns in for one extra points if Tom we
frozen [14]
If they only scored one field goal they would start with 3, and if they scored one extra point on each touchdown that would be 7+7+3 that would equal 17. If they only scored one extra point between two touchdowns than it would be 3+7+6=16
4 0
3 years ago
NO LINKS!!
yan [13]

Answer:

y=-\dfrac{1}{2}(x+4)^2-1

Step-by-step explanation:

Vertex form:  y=a(x-h)^2+k  

where:

  • (h, k) is the vertex
  • a is some constant

Given:

  • vertex = (-4, -1)
  • point on parabola = (-2, -3)

Substitute given values into the formula to find a:

\implies -3=a((-2)-(-4))^2+(-1)

\implies -3=a(2)^2-1

\implies -3=4a-1

\implies -2=4a

\implies a=-\dfrac{2}{4}=-\dfrac{1}{2}

Therefore, the equation of the parabola is:

y=-\dfrac{1}{2}(x+4)^2-1

6 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ME!!!!!!!Which expression is equivalent to 6x2−(4x+10)−3+(4x2−5x)?
    6·1 answer
  • Find all solutions of the equation in the interval [0,2pi)
    12·1 answer
  • Find the area of the shaded region​
    5·1 answer
  • Please help it's due in a few minutes ASAP
    14·1 answer
  • Brainliest is given to the correct answer!
    11·1 answer
  • ∠1 ​ and ∠2 are supplementary.
    5·1 answer
  • Solve the following<br> 2.87 x 7.8 =
    12·1 answer
  • Which expression has the same value as 4÷25 in fraction form
    11·1 answer
  • J'ai un problème de math que je n'arrive pas à résoudre:
    11·1 answer
  • Tell whether the value is a solution of the inequality
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!